15kV 630A European-Style Rear Connector
✅ Fully Insulated & Shielded: No exposed live parts, ensuring operational safety.
✅ Compact Modular Design: Space-saving, compatible with compact switchgear.
✅ High Current-Carrying Capacity: 630A continuous load, 40kA short-circuit withstand capability.
✅ Environmental Adaptability: Resistant to UV, salt spray, and ozone, suitable for harsh outdoor and underground environments.
✅ Plug-In Connection: Easy installation, supports live-line operation (requires specialized tools).
- Product Introduction
Our European-style rear connector is a fully insulated and shielded plug-in device built for 10-15kV power distribution. It is the perfect fit for Ring Main Units (RMUs), compact substations, and cable distribution cabinets.
- Zero Exposure, Total Safety: Fully insulated and shielded structure. No live parts exposed during operation.
- Massive Power Handling: Rated for 630A continuous load and 40kA short-circuit withstand capability.
- Space-Saving Design: Compact modular build fits easily into tight switchgear spaces.
- Built for Harsh Environments: Resists UV, salt spray, and ozone. Ideal for outdoor and underground use.
- Fast Plug-In Installation: Easy to install and supports live-line operation (requires specialized tools).
Technical Parameters
| Parameter | Specification | Core Advantage |
|---|---|---|
| Rated Voltage | 15kV (Um = 17.5kV) | Compliant with standard MV distribution grids |
| Rated Current | 630A (at 40°C ambient) | Handles heavy continuous loads reliably |
| Applicable Cable | 25-630mm² (Cu/Al) | High flexibility for various conductor sizes |
| Power Freq. Withstand | 39kV / 5min (No breakdown) | Exceeds standard safety margins |
| Lightning Impulse | 95kV (10 impulses, No breakdown) | Superior protection against voltage surges |
| Short-Time Withstand | 25kA/3s or 40kA/1s | Survives extreme short-circuit fault conditions |
| Protection Class | IP68 | Fully dustproof & submersible in water |
| Operating Temp | -50°C to +90°C (Short-term +130°C) | Ideal for extreme outdoor/underground climates |
| Partial Discharge | ≤10pC (at 15kV) | Ultra-low leakage, ensures long lifespan |
Core Structure & Sealing Design
- Conductor Connection: Features silver-plated copper alloy plug-in contacts. Contact resistance is strictly controlled to ≤5μΩ. Crimped terminals ensure a rock-solid connection for both copper and aluminum cables.
- Insulation System: Main insulation uses premium EPDM rubber, highly resistant to aging and extreme temperatures. A multi-layer semi-conductive shield evenly distributes the electric field, effectively preventing partial discharge.
- Heavy-Duty Housing: Built with high-strength aluminum alloy or stainless steel. Impact-resistant and highly corrosion-proof.
- Inner Seal: High-grade EPDM rubber ring. Maintains elasticity in extreme temperatures (-40°C to +130°C).
- Outer Seal: Optional waterproof gel or heat-shrink tubing provides an extra layer of IP68 protection against moisture.
Typical Applications
RMUs: Safe cable entry/exit connections.
- Compact Substations: Reliable high-voltage terminations.
- Distribution Cabinets: Flexible multi-circuit branching.
- Wind & Solar Farms: Durable MV collector line connections.
FAQ
Q1: What cable sizes are compatible with this 15kV rear connector?
A: This connector is designed to fit cables with an outer diameter of Φ40±2mm (typically corresponding to 25-630mm² cross-sections). Please ensure your crimp terminals perfectly match the conductor material (copper or aluminum) for a secure electrical connection.
Q2: How can I verify the sealing performance after installation?
A: We recommend performing a standard pressure test by applying 0.04MPa for 24 hours. The seal is considered successful if the pressure drop is ≤10%. Alternatively, a water immersion test can be conducted to ensure IP68 protection.
Q3: What should I do if I detect abnormal temperature rise during operation?
A: Overheating is usually caused by poor crimping or high contact resistance. We advise using an infrared thermometer to quickly locate hotspots. If a hotspot is found, check the crimping quality, clean the contact surface, and re-terminate the cable.
Q4: Is this European-style rear connector compatible with American-style equipment (e.g., T-body connectors)?
A: They are not directly compatible due to different interface standards. However, you can easily connect them by using a European-to-American adapter (converter).
Hot Tags: 15kV Rear Connector, European Style Cable Joint, 630A Shielded Connector, Rear Bushing
